Apparatus for manufacturing flanged flues for boilers.



N0. 662,!25. Patented Nov. 20, I900.

F, LANE. APPARATUS FOR MANUFACTURING FLANGED FLUES FOB BOILERS.

(Application filed Aug. 11, 1899.) (No Model.) 6 Shasta-Sheet I.

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' F. L. LANE.

APPARATUS FOR MANUFACTURING FLANGED FLUES FOR BOILERS.

(Application filed Aug. 11, 1899.)

6 Sheets-Sheet '2.

(N0 Medal.)

Inventor:

No. 662,125. Patented Nov. 20, I900.

F. LANE. v APPARATUS. FOR MANUFACTURING FLANGE!) FLUES FOR BOILERS. (Appliatimi filed Aug. 11. 1899.}

(No Model.) 6 Sheets-Sheet a.

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No. 662,|25. Patented Nov. 20, I900.

F. L. LANE.

APPARATUS FOR MANUFACTURING FLANGE-D FLUES FOB BOILERS.

(Application filed Aug. 11; 1899.) (No Model.)

6 Shaets -Sheet 4.

Patented Nov. 20, I900. v F. L. LANE. v APPARATUS FOR MANUFACTURING FLANGED FLUES FOB BOILERS.

(Applicatioh fllgd Aug. 11. 1899.)

' 6 Sheets-Sheet 5 (N0 Modal.)

.mtmss W No. 662,l25. Patented Nov. 20, I900. F. L. LANE.

APPARATUS FOR MANUFACTURING FLANGED FLUES FOR BOILERS.

(Application filed Aug. 11; 1899.)

('No Model.) I i 6 Shear-Sheet 6.

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UNiTsn TATES ATENT Fries.

FRANCIS LAVRENCE LANE, OF LEEDS, ENGLAND, ASSIGNOR TO-THE LEEDS FORGE COMPANY, LIMITED, OF SAME PLACE.

APPARATUS FOR MANUFACTURING FLANGED FLUES FOR BOILERS.

SPECIFICATION forming "part of Letters Patent No. 662,125, dated November 20, 1900.

Application filed August 11,1899. Serial No. 726,906. (No model.) i

To all whom it nuty concern;

Be it known that I, FRANCIS LAWRENCE LANE, a subjectof the Queen of Great Britain and Ireland, residing at Leeds, in the county 5 of York, England, have invented Improvements in Apparatus for Manufacturing Flanged Flues for Boilers, of which the following is a specification.

It is usual to make boiler-fines with a tubeplate flange whose direction is at right angles to the axis of the flue and with reverse flanges at the two opposite edges of the tube-plate flange, these reverse flanges merging into the wall of the circular or approximately circular l portion of the flue. Although it has been attempted in the manufacture of such lines to produce the reverse flanges by machinery, yet so far as I am aware the results of such attempts have not been satisfactory, and in practice it is usual to form the said flanges by hand, which is a tedious and expensive operation, involving several reheatings and considerable time and labor.

Now this invention has reference to the formation of the reverse flanges after the metal has been bent and welded into the form of a flue (corrugated if desired) and after the tube-plate flange has been formed by bending an appropriately-shaped end portion or 0 prolongation of the flue-wall into a plane at right angles, or approximately so, to the longitudinal axis of the line, (whether in the ordinary or any convenient manner).

The formation of the reverse flanges accord- 5 ing to this invention is effected by heating the metal to a suitable temperature and operating upon it by means of flanging-dies actuated by hydraulic or other power, while the tubeplate flange is held by and between the adjacent surfaces of two parts or bodies, such as (respectively) a presser or flange-holder and a bed or table, one or both of which can by hydraulic orother power be moved toward or from the other and one of which is or may be adapted to itself constitute or to support a former, between which and the flangingdies the reverse flanges are formed.

The accompanying drawings illustrate one example of a flue having flanges such as referred to and a construction of apparatus, ac-

cording to this invention for the formation being shown in the flanging position.

of the reverse flanges in the manner above set forth.

Figure 1 shows in perspective so much of a flue as is needful to indicate in a general way the well-known flange formation it is the object of thisinvention to produce more readily and economically than heretofore usual. Fig. 2 shows the apparatus in elevation. In this same figure there is shown in section a flue in the flanging position with the returnflanges already formed. In the view of the apparatus itself one of the flanging-dies is shown returned to its upper position, the other flanging-die being shown as still in the position corresponding to completion of the flanging stroke, while the presser or holder is represented as still in its flue-holding position. Fig. 3 shows an elevation of the apparatus at right angles to Fig. 2, a flue being represented with its tube-plate flange being held by and between the presser or holder and the bed or table. Fig. 4. shows a plan of the apparatus. Fig. 5 shows in section parts of the apparatus, including the adjustable 7; central block or retainer, means for adjusting same, the bed or table constituting a former, and part of a flue in position thereon. Fig. 6 shows to a larger scale a plan of the bed or ta- Die, the presser or holder, and parts of the dies for forming the return flanges, a flue Fig. 7 shows a section partly in line A B and partly in line C D of Fig. 6. Fig. 8 shows a section in line E F of Fig. 6. Fig. 9 shows a similar view to Fig. 6 of a modified arrangement.

In Fig. 1, Ct is the tube-plate flange. b b are the reverse flanges.

Referring to Figs. 2 to 8, inclusive, the bed or table 0 is provided with a flange-former d, 0 suitably fixed, and has arranged nearit ways or guides e, on which the pressure or flangeholderfand the flanging-dies Q can be caused to travel. The former d may in some cases be replaced by a number of formersfor in- 5 stance, one for each reverse flange to be produced. The Hanging-dies g are mounted on blocks or carriages h, able to travel on such inclined ways e and connected by suitable rods t and cross-headsj to the plungers 76 of hydraulic rams l, the upper rodt' being connected at a swivel to the upper cross-head j,

which latter is connected by two other rods 1; to the lower crosshead j, to which the said rods are pivoted, and the last mentioned cross-headj being able to turn about the pin which attaches it to the plunger k, by which arrangement the connecting-rods i are enabled to oscillate to the necessary extent in relation to the rams, and after the flue in has been secured in position the flanging-dies g can be operated so as between them and the former d to form the reverse flanges I) while the metal is in a sutficiently-heated condition. It is preferred to effect the formation of the reverse flanges b at one heat where practicable. The presser or flange-holderf is also mounted on a block or carriage h, that travels on an inclined way or ways 6, and is connected to the plunger 76 of a hydraulicram l by means of two rods 2', which are pivoted to the block or carriage and to a cross-head j, which is itself secured by a pin (about which it can turn) to the said plunger 7i). The incli ned ways c are adjustable toward and away from the axis of the flue m and are capable of being secured in the required posit-ions. For this purpose the said ways e are mounted on the parts it of the bed 0, each of which parts is formed with T-shaped grooves o to receive the heads of boltsp, whose stems pass up through suitable holes in the castings which carry the inclined ways and are secured by means of nuts screwed onto the bolts in a manner well understood, packingpieces q being introduced between the said castings and the abutments r, formed on the said parts it of the bed 0. t

In the example the inclined waysfor the sliding block or carriage of the presser or flan ge-holderare integral with the correspond ing casting s. The inclined ways 6 of the Hanging-dies g can be set with their faces at any desired angle to that. or those of the inclined way or ways on which the presser or flange-holder f travels, thereby enabling flues to be formed with reverse flanges I) either parallel,approximately parallel, or divergent. For this purpose the said inclined ways e are formed or provided with vertical backs, which are partly circular in plan (see Fig. 4) and which bed against suitably-formed standards t, to which the inclined ways are secured by T-bolts which pass through the standards, the heads of the bolts being located in suitable grooves formed in the backs of the inclined ways and the bolts being fastened by nuts screwed onto them, as well understood. The curved backs of these ways are formed with worm-segments it, engaged by worms '0,

carried by the standards t, whereby the inclined ways e can be turned as required. Other means of adjustment may be employed.

The shape of the presser or flange-holder will depend on circumstances. In Fig. 6 it is shown of a form suitable for the reverse flanging of a wing or enter flue. In Fig. 9 it is represented of a shapesuitabl'e for use in the case of a central flue.

flanging-dies.

The shapes of the former d and of the flanging-dies g will vary according to the precise form of the return-flanges to be produced. The former 61 might be made integral with the bed 0. Other means might be employed to actuate the presser or flange-holder and the They might, for example, be worked by steam-power or by screws; but the hydraulic arrangement, of which an example is shown, is deemed preferable.

The drawings show a central retainer over which is placed that end of the flue at which the tube-plate flange is formed. This central retainer when used is intended to retain or aid in retaining the end of the fine in a suitable position forthe reverse-flangingoperation. The central retainer miglit be in the form of a circular block; but in the example it is made adjustable as to its diameter or width within certain limits, so that before or, if necessary, after the end of the flue has been placed in position the central retainer can be expanded radially, so as to touch the inner surface of the wall of the flue and also contracted again to enable the flue to be readily removed. For this purpose it comprises a number of segments w, provided with part rings at their peripheries and connected by links 00 to a vertical rod y, actuated through a lever a, worked by a nut-wheel '1 through a screw 2, Fig. 5; but the central retainer is metal for thepurpose of producing the reverse flanges the metal is to be heated to a temperature suitable for flanging, as is well understood in the manufacture of fines of the type in question.

What I claim is- 1. In an apparatus for producing reverse flanges on a fluealready formed with a tubeplate flange, the combination of a former, means for holding said tubeplate flange against said former a flanging die or tool able to travel along inclined ways and means for operating same so as to bend the metal and to produce the desired reverse flanges between said formcr and said flanging die or tool, substantially as described.

2. In an apparatus for producing reverse flanges on a flue already formed with a tubeplate flange, the combination of a former, a presser or flange-holder, means for causing same to hold the tube-plateflange of theflue against said former, flanging dies or tools able to travel along inclined adjustable ways and means for operating same so as to bend the metal and to producethe desired reverse flanges on a due already formed with a tubeplate flange, the combination of a former, a presser or flange-holder, means for operating same, flanging dies or tools able to travel along inclined ways and means for operating said dies or tools, as set forth.

4. In an apparatus for producing reverse flanges on a flue already formed with a tubeplate flange, the combination of a former, a presser or flange-holder able to travel along an inclined way, means for operating same, flanging dies or tools and means for operating same, as set forth.

5. In an apparatus for producing reverse flanges on a flue already formed with atubeplate flange, the combination of a former, a presser or flange-holder able to travel along an adjustable inclined way, means for operating same, flanging dies or tools and means for operating same, as set-forth.

G. In an apparatus for producing reverse flanges on a flue already formed with atubeplate flange, the combination of a former, a presser or flange-holder, means for operating same, flanging dies or tools able to travel along adjustable inclined Ways and means for operating said dies or tools as set forth.

7. In an apparatus for producing reverse flanges on a flue already formed with a tube plate flange, the combination of a former, a presser or flange-holder, means for operating same, flanging dies or tools able to travel along inclined ways adjustable radially toward and from the axis of the flue and also angularly relatively to each other and means for operating said dies or tools, as set forth.

8. In an apparatus for producing reverse flanges on a flue already formed with a tube plate flange, the combination of a former, a presser or flange-holder able to travel along an inclined Way, means for operating same, flanging dies or tools able to travel along inclined Ways, and means for operating same, as set forth.

9. In an apparatus for producing reverse flanges on a fine already formed with a tubepl'ate flange, the combination of a former, a presser or flange-holder able to travel along an adjustable inclined way, means for operating same, flanging dies or tools able to travel along inclined Ways, and means for operating same, as set forth.

10. In an apparatus for producing reverse flanges on a flue already formed With a tubeplate flange, the combination of a former, a presser or flange-holderable to travel along an adjustable inclined Way, means for operating same, flanging dies or tools able to travel along adjustable inclined Ways,and means for operating same, as set forth.

ll. In an apparatus for producing reverse flanges on a fine already formed with a tubeplate flange, the combination of a former, means for holding the tube plate flange against said former, Hanging dies or tools, means for operating same and a central retainer Wherebythe flue is held in position, as set forth.

12. In an apparatus for producing reverse flanges on a flue already formed with atubeplate flange, the combination of a former, means for holding the tube plate flange against said former, flanging dies or tools, means for. operating same and a central retainer adjustable as to its diameter and comprising a number of segments connected by links to a vertical movable rod, as set forth.

13. For producing reverse flanges on a flue already formed with a tube-plate flange, an apparatus comprising a bed having a former and inclined Ways fixed thereon, a presser or flange-holder and flanging-dies able to travel on said inclined ways and operated by the plungers of hydraulic rams secured beneath the bed, as set forth.

14. For producing reverse flanges on a flue already formed with a tube-plate flange, an apparatus comprising a bed 0 with abutments q and having a former d and inclined ways 6 thereon, a presser or flange holder f and flangingdies 9 mounted on blocks or carriages h, hydraulic ramsl secured beneath the bed 0 and rods 2' and cross-heads j connecting said blocks or carriages h to the plungers of said rams, as set forth.

15. In an apparatus for producing reverse flanges on a flue already formed with a tubeplate flange, the combination of standardst fixed to the bed of the apparatus and formed with partly-circular faces, inclined ways 6 having vertical backs partly circular in plan and bedding against the faces of the standards, worm-segments u on the inclined ways and worms "0 carried by the standards, as set forth.

16. In an apparatus for producing reverse flanges on a flue already formed with a tubeplate flange, the combination of a bed 0, a former (Z a central retainer comprising segments to having part rings, and means for varying the diameter of said retainer for the purpose specified consisting of a verticallymoving rod y, linksm connecting each of said segments thereto and a lever engaging said rod and Worked by a nut-wheel l and screw 2, as set forth.

Signed at Leeds, in the county of York, England, this 3d day of July, 1899.

FRANCIS LAWVRENOE LANE.

Witnesses:

GEO. COOPER, JAMES S. JEPSON. 

